Resilient platform for street-cars.



A. H. LARSON.

Y RESILIENT PLATFORM POR STREET GARS.

APPLICATION FILED SEPT. 28,1914.

1,1 22,956. Patented Dee. 29, 1914.

2 SHEETS-SHBET l.

THE NORRIS PETERS C01, PHOO-LITHO.. WASHINGTUN, D a,

A. H. LARSON.

RESILIBNT PLATFORM FOR STREET GARS.

APPLICATION FILED SEPT. 28,1914.

1,122,956. Patented Dec. 29, 1914.

2 SHEETS-SHEET 2.

THE MORRIS PETERS co.,PHoToYLlT/1o., wAsHlNGroN. D, c.

ALBIN H. LARSOII, OF JEIINNEAPOLIS, MINNESOTA.

RESILIENT PLATFORM FOR STREET-CARS.

Specification of Letters Patent. Patgntgd Digg, 231, lgjg,

Application led September 28, 1914. SerialNo. 863,903.

To all whom t may concern Be it known that I, ALBINII. LARsoN,a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements inResilient Platforms for Street-Cars; and I do declare object of the invention becomes to provide simple means whereby the supplemental platform may be adjusted vertically to allow for more or less downward yielding movement.

A still further object is to provide for the attachment of additional springs, to be employed in case the device is to be used by a rather corpulent motorman.

Yet another object is to construct the entire device in an extremely simple manner for performing the functions for which it is designed.

With the above and minor objects in view, the invention resides in certain novel features of construction and combination herein described and claimed and shown in the drawings wherein:

Figure l is a longitudinal section through a portion of a car platform, showing the application of the invention thereto; Fig. 2 is a transverse section through the platform showing a rear side view of the device; Fig. 3 is a horizontal section through parts rising from the platform and illustrating a top plan view of the invention. Fig. 4 is a detail vertical'section as seen on the line 4 4 of Fig. 3, showing the application of an additional spring; and Fig. 5 is a detail horizontal section as seen on the line of Fig. 2. i

In the accompanying drawings, I have shown aportion of a cai' which includes one or more motormens platforms I), the usual controlling box B, brake operating shaft S, dog D, and bell operating pin 79. Designed to rest upon the platform P is a rectangular Vlatter being bed frame l which comprises parallel lougitudinal bars 2 and transverse end bars 3, the preferably riveted to the bars 2, although they could well be formed integrally therewith. Rising from each end bar 3 is an upright standard 4 here shown as formed of a pair of angle iron bars 5 having two of their flanges in contact, the lower ends of said flanges being turned outwardly to provide attaching feet 6 through which bolts or rivets 7 pass, whereby the standards are rigidly secured in position upon the bed frame. It will be noted that the remaining flanges of the bars 5 depend a slight distance below the end bars 8 and contact with the inner edges thereof, this construction being provided in order to more rigidly brace the standards 4.

Contacting with the inner angular sides of the angle iron bars 5, are other angle iron bars 8, the flanges of which, contacting with the transverse flanges of the bars 5, are bent inwardly as seen at 9 to provide means for attaching the upper ends of coiled springs l0, said ends 9 being preferably vprovided with openings for this purpose.

Passing through alined openings in the longitudinally extending flanges S of the angle iron bars 8, and through an upright slot l1 in the longitudinal lianges of the standard 4, is a clamping bolt l2, by means of which the bars 8 may be adjusted vertically in respect to the base or bed frame l.

The lower ends of the springs 10 are here shown in the form of hooks 13 which pass through openings in the four corners of a rectangular platform plate or bar 14, said bar being thereby resiliently supported, and being designed to receive the heels of a motorman standing upon the device, the toes of the motorman being designed to be supported by a longitudinalboard 16 which is hinged to the front edge of the frame l and which, in turn, is provided with a forwardly projecting extension 17 which is hinged to its forward edge, the extension 17 being located adjacent the dog D, whereby the motorinans right foot maybe properly supported for actuating said dog. The board 1G is provided with an opening C through which the plunger p rises.

As most clearly seen in Fig. 4, the upper ends 9 of the bars 8, are spaced, this space being utilized, at times, for the reception of a shouldered eye-bolt 18 whose shank projects through said slot, a nut 19 being threaded upon the upper end of said eye-Y bolt and contactingpivith the said ends 9.y

These eyebolts 18 are provided in order that additional coiled springs 10 may be provided, the lower ends of said springs being formed into hooks 13 which are passed through suitable openings in the transverse center of the plate 14, at its opposite ends. These additional springs 10', are only employed when a comparatively heavy motorman is to use the device, the addition of other springs being then essential in order to properly support the added Weight.

From the foregoing description, taken in connection with the accompanying drawings, it will be seen that I have produced extremely simple construction for carrying out the objects of the invention, yet that this structure will well perform the functions for which it is designed and vvill possess numerous advantageous features, the most prominent of these features being the fact that the device absolutely prevents shocks and jars from being imparted to the feet and legs of the motor-man.

I have describedl my invention With considerable minuteness and have set forth certain specific forms for carrying out the objects of the invention but it is to be understood that I need not be limited to details of construction other than those set forth in `the appended claims.

I claim:

`1. A base, a pair of spaced vertically adjustable standards rising therefrom, coiled springs depending from said standards, and a platform supported by said springs.

2. A base, angle iron standards rising therefrom, angle iron bars fitting slidably Within the angles of said angle iron standards and having spring supporting ears, adjusting bolts passing through said angle iron flanges being bent laterally tov provide at'- l attaching feed Vand through said end bars, angle iron bars fitting Islidably Within the angles of said angle iron standards coiled taching feet, fasteners passing through said4 y springs depending from said angle iron bars,

a platform supported by said coiled springs, and means Whereby saidangle iron barsmay be adjusted vertically in respect to said angle iron standards. Y

4.-. A resiliently supported supplemental platform. designed tovbe` positioned, upon a car platform, said supplementall platform being designed to receive the heels 'of a motornian, a board in advance of the supplemental platform and designedv to receive thetoes ofthe motorman, and an extension on the forward edge of said board for the purpose set forth.

5. A resiliently supported supplemental" platform designed to be positioned'upon a car platform and to receive the heels of a motorman, and a board in advance of the supplemental platform and designed to receive the toes 4of the motorman.

In testimony whereof I have hereunto set my hand in presence of tvvo subscribing lWitnesses.

ALBIN H. LARSON.

Vfitnesses Lilas O. II'AUG, .Yy ANNA KNULsoN.

Copies of this patent may be obtained for five cents each, by addressing'the Commissioner of Patents,

Washington, D. C. 

